4
Appendix
4.1
Alarms and Warnings
4.1.1
Alarm Classes
Alarm class
Visible in the
display
LED and horn
Open GCB
Shut-down
engine
Engine blocked
until
acknowledge
Warn
X
X
This alarm does not interrupt the operation of the unit. An output of the centralized alarm occurs and
the “Horn” command is issued. Alarm text + flashing LED + Relay centralized alarm (horn)
Shutdown
X
X
Immediately
Immediately
X
The GCB is opened and the engine is stopped. Alarm text + flashing LED + Relay centralized alarm
(horn) + GCB open + Engine stop.
Trip/shut
x
x
Immediately
Cool down time
X
The GCB is opened immediately and the engine is stopped after cool down. Alarm text + flashing LED
+ Relay centralized alarm (horn) + GCB open + Cool down + Engine stop.
Trip
X
X
X
The GCB is opened but does not interrupt the operation of the unit. Alarm text + flashing LED + Relay
centralized alarm (horn) + GCB open.
Indication
X
This alarm does not interrupt the operation of the unit. A message output without a centralized alarm
occurs. Alarm text
4.1.2
Warnings
No
Type
Description
1
Overspeed
When the controller detects that the engine speed has exceeded the pre-set
value, it will initiate a warning alarm.
2
Underspeed
When the controller detects that the engine speed has fallen below the pre-set
value, it will initiate a warning alarm.
3
Loss of speed signal
When the controller detects that the engine speed is 0 and the selected action
is “Warn”, it will initiate a warning alarm.
4
Gen. overfrequency
When the controller detects that the genset frequency has exceeded the pre-set
value, it will initiate a warning alarm.
5
Gen. underfrequency
When the controller detects that the genset frequency has fallen below the pre-
set value, it will initiate a warning alarm.
6
Gen. overvoltage
When the controller detects that the generator voltage has exceeded the pre-
set value, the controller will initiate a warning alarm.
7
Gen. undervoltage
When the controller detects that the genset voltage has fallen below the pre-set
value, it will initiate a warning alarm.
8
Gen. overcurrent
When the controller detects that the genset current has exceeded the pre-set
value and the selected action is “Warn”, it will initiate a warning alarm.
9
Fail to stop
After “Stop solenoid hold” delay, if genset does not stop completely, it will
initiate a warning alarm.
26
easYgen-1700
37888A
4 Appendix
4.1 Alarms and Warnings
